/**
 * Copyright (c) 2012-2017, www.tinygroup.org (luo_guo@icloud.com).
 * <p>
 * Licensed under the GPL, Version 3.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.gnu.org/licenses/gpl.html
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.tinygroup.template.rumtime.operator;

import org.tinygroup.template.TemplateContext;
import org.tinygroup.template.TemplateException;
import org.tinygroup.template.rumtime.OperationUtil;
import org.tinygroup.template.rumtime.OperatorWithContext;

/**
 * Created by luoguo on 2014/6/8.
 */
public class LeftPlusPlusOperator implements OperatorWithContext {

    public Object operation(TemplateContext context, String name, Object value) throws TemplateException {
        Object v = context.get(name);
        if (v != null) {
            v = OperationUtil.executeOperation("+", v, 1);
            context.put(name, v);
            return v;
        } else {
            return name;
        }
    }

    public String getOperation() {
        return "l++";
    }

}
